Furnace Repair and Maintenance
Furnace Repair & Maintenance
London Ontario
Hawana HVAC Solutions provides furnace repair and annual maintenance across London Ontario and Southwestern Ontario — $175 diagnostic applied to repair cost because a homeowner should know the problem and the price before any work starts, and a 12-point annual tune-up for $149 per year because a cleaned flame sensor at the October service visit costs nothing to maintain and $150 to $250 to repair when it causes the furnace to shut off on a January night. 24/7 emergency repair at zero after-hours surcharge. Premium plan members get priority dispatch in the January queue. TSSA certified. BBB A+. 138 five-star reviews since 2018.
Furnace Maintenance Plans — London Ontario
One annual payment, no subscription, no automatic renewal unless you choose to continue. Book in September for the best availability before London Ontario's heating season starts.
Annual Furnace Tune-Up
- 12-point inspection and service visit
- Heat exchanger visual and combustion inspection
- Flame sensor cleaning
- Burner and igniter inspection and cleaning
- Flue and venting inspection
- Combustion analysis (CO and CO₂ in flue gases)
- Carbon monoxide leak test in circulating air
- Electrical connections check
- Pressure switch and safety controls test
- Gas line connections leak test
- Thermostat calibration check
- Filter inspection and replacement recommendation
Annual Tune-Up + Priority Service
- Everything in the Basic Plan (12-point tune-up)
- Priority dispatch — front of queue for emergency calls, including January peak demand
- One complimentary furnace filter per year
- Annual air conditioning check-up (spring)
- Diagnostic fee waived on repair calls
- Annual report with equipment condition assessment
No monthly subscription, no automatic renewal: Both plans are a single annual payment. There is no recurring monthly charge and no automatic renewal. If you want to continue the plan the following year, you book again. Hawana does not lock homeowners into subscription services. Call (647) 550-4220 to book.
What the Annual Furnace Tune-Up Inspects — 12 Points
Every item below is inspected or serviced at the annual tune-up visit. Red items are safety checks. The visit takes approximately 75 to 90 minutes.
Heat Exchanger — Visual & Combustion Inspection
The most critical safety check. Visual inspection for cracks or corrosion. Combustion analysis measures CO concentration in flue gases to detect a breached exchanger before a crack becomes large enough to cause CO symptoms in the home.
Carbon Monoxide Leak Test — Circulating Air
CO concentration in the air leaving the furnace is measured directly. Any reading above 0 parts per million indicates combustion gas contamination of the circulating air — a CO poisoning risk requiring immediate shutdown and investigation.
Flame Sensor — Clean & Inspect
The flame sensor rod accumulates oxidation over the heating season that reduces its electrical conductivity. Annual cleaning is the single highest-value maintenance action — prevents the most common preventable furnace failure (burner lights then shuts off in seconds).
Burner & Igniter — Inspect & Clean
Burner ports inspected for blockage and scale buildup. Hot surface igniter inspected for cracks. A cracked igniter is identified before it fails entirely and leaves the home without heat. Burner flame pattern assessed.
Flue & Venting — Blockage, Corrosion, Draft
Flue pipe and termination inspected for blockage (bird nests are a common London Ontario issue in PVC direct-vent systems), corrosion, and separation. Draft measured to confirm proper exhaust flow. A blocked flue causes CO to back-draft into the home.
Combustion Analysis — CO and CO₂
Flue gas composition measured with a calibrated combustion analyser. CO concentration, carbon dioxide, and flue temperature assessed. Abnormal readings indicate incomplete combustion, which can signal heat exchanger issues, gas pressure problems, or burner fouling.
Inducer Motor & Blower Motor — Check
Both motors inspected for bearing noise, vibration, and current draw. Early bearing wear in the inducer motor — identified by a faint grinding or rattling — is caught before it becomes a no-heat failure. Blower motor amp draw measured against specification.
Pressure Switch & Safety Controls — Test
Pressure switch operation confirmed. High-limit switch tested. All safety lockout controls cycled and verified. These are the controls that shut the furnace down safely in abnormal conditions — a stuck-open pressure switch can mask a flue blockage.
Gas Line Connections — Leak Test
All accessible gas connections at the furnace — including the flexible connector, shutoff valve, and gas valve inlet — tested for leaks with a calibrated detector. Gas leaks at furnace connections are rare but represent a fire and explosion risk.
Electrical Connections — Check & Tighten
All accessible electrical connections at the control board, motors, and igniter inspected for looseness, corrosion, and burn marks. Loose connections cause intermittent failures and control board issues that can be expensive to diagnose without this check.
Thermostat — Calibration & Operation
Thermostat temperature calibration verified. Heat call response time tested. If the thermostat is reading several degrees above or below actual room temperature, the furnace runs more or less than needed — increasing gas consumption and reducing comfort.
Filter — Inspection & Recommendation
Current filter condition assessed. Replacement recommended if loaded. Filter type and MERV rating discussed based on household occupancy, pets, and allergy requirements. A clogged filter is the most common cause of high-limit shutdowns in London Ontario.
When Should I Service My Furnace in London Ontario?
The short answer: September or October. Here is why timing matters in London Ontario specifically.
September–October is ideal: Before the heating season starts, technician availability is still good, and any issues found can be repaired before the first genuinely cold night. A flame sensor that is on the edge of failure will survive September but may not survive January. Finding it in October costs $149 for the tune-up. Finding it in January costs $175 diagnostic plus the repair, during the busiest service period of the year when wait times are longest.
November–January = highest demand, longest waits: Every furnace company in London Ontario is at or near maximum capacity from mid-November through January. Homeowners who skip annual maintenance are most likely to call for emergency service in this window. Premium plan members get priority dispatch ahead of non-member calls even during this period.
July–August (off-season) is acceptable: If you missed the fall window, summer servicing is better than no service. The furnace will be inspected before the heating season and issues identified and repaired at lower-demand pricing and faster scheduling.
What $149/yr Maintenance Prevents vs What Repairs Cost
Annual maintenance does not prevent every furnace failure. It does prevent the most common and most preventable ones — the ones caused by dirty sensors, blocked venting, and undetected early-stage wear.
✗ Without Annual Maintenance — What Can Happen
- Dirty flame sensor causes burner to light then shut off — $150–$250 repair
- Bird nest in PVC exhaust causes ignition failure in spring — $175–$250 repair
- Clogged filter causes high-limit shutdown — $175 service call for a $10 filter
- Heat exchanger crack missed until CO detector alarms — $3,400+ replacement
- Inducer motor early wear undetected until it fails mid-winter — $400–$600 repair
- Gas connection micro-leak undetected over years
- $175 emergency diagnostic at 11pm January — same visit as a non-emergency repair if caught in October
✓ With Annual Maintenance — What Gets Caught
- Flame sensor cleaned at tune-up — $0, included in $149
- Venting inspection catches bird nest before heating season starts
- Filter checked, replacement recommended before clogging causes shutdown
- Combustion analysis detects heat exchanger deterioration early
- Inducer motor bearing noise identified — repair scheduled on your terms
- Gas connections leak-tested annually
- $0 diagnostic fee for plan members on repair calls
The honest calculation: Annual maintenance at $149 per year prevents some failures entirely (flame sensor, filter), catches others early when repair is cheaper and scheduling is on your terms (inducer motor, heat exchanger), and provides the only proactive CO safety check available for a gas furnace. For a furnace that is 8–15 years old, the maintenance cost is typically less than one diagnostic service call. Crag K.'s review below shows a real example: inducer motor early wear identified at the September tune-up on a 14-year-old furnace.
Furnace Repair Costs — London Ontario 2026
$175 diagnostic applied to repair cost. All common repairs below. Plan members: diagnostic fee waived on repair calls.
| Repair | Symptom | Cost (parts + labour) | Preventable by Maintenance? |
|---|---|---|---|
| Hot surface igniter | Furnace attempts to fire, no heat | $150–$250 | Partially (inspected at tune-up) |
| Flame sensor cleaning / replacement | Burner lights then shuts off in seconds | $150–$250 | Yes — cleaned at every tune-up |
| Pressure switch | Inducer runs, burner won't fire | $200–$350 | Partially (tested at tune-up) |
| Inducer motor | Grinding noise, furnace short-cycles | $400–$600 | Yes — early wear caught at tune-up |
| Control board | Erratic behaviour, error codes | $350–$600 | Partially (electrical check at tune-up) |
| Gas valve | Igniter glows, no gas to burner | $300–$500 | No |
| Blower motor | Furnace fires, no air from vents | $300–$500 | Partially (motor check at tune-up) |
| Cracked heat exchanger | CO symptoms, soot marks, CO alarm | Replace from $3,400 | Yes — detected early by combustion analysis |
| Venting blockage clearance | Ignition failure, error codes | $175–$250 | Yes — caught at venting inspection |
$175 diagnostic, applied to repair cost: Every repair call starts with a $175 diagnostic. If you proceed with the repair on the same visit, $175 is applied to the repair cost. Plan members have the diagnostic fee waived. Written repair vs replace recommendation at every visit. If repair cost exceeds $1,700 (50% of a $3,400 new furnace), replacement is recommended and quoted same visit. Call (647) 550-4220.
Furnace Filter Guide — London Ontario Homes
The most common cause of preventable furnace shutdowns in London Ontario is a clogged filter. Here is how often to replace based on filter type and household conditions.
Catches only large particles. Low restriction but minimal air quality benefit. Replace frequently or upgrade to MERV 8.
Best balance of air quality and airflow for most London Ontario homes. Hawana's default recommendation. Replace every 3 months or sooner with pets or renovation dust.
Good for allergy sufferers. Higher restriction — confirm your furnace blower can maintain adequate airflow with this filter. Check monthly in dusty conditions.
Hospital-grade filtration. High restriction — only use if your furnace manufacturer specifically recommends. Restricted airflow can cause overheating and blower motor failures.
Homes with pets or renovation activity: Replace at half the standard interval. A MERV 8 filter in a home with two dogs in London Ontario in the winter (windows closed, furnace running continuously) should be checked monthly and replaced every 6–8 weeks rather than every 3 months. Hawana checks the filter at every service visit and provides a replacement recommendation based on actual condition.
Carbon Monoxide & Your Furnace — What London Ontario Homeowners Need to Know
Carbon Monoxide — The Silent Risk in Every Gas Furnace Home
Carbon monoxide (CO) is a colourless, odourless gas produced by incomplete combustion of natural gas. The heat exchanger in your furnace is the only barrier between combustion gases and the air circulating through your home. A cracked heat exchanger — or a blocked flue that causes back-drafting — allows CO to enter the living space.
Ontario law requires CO detectors in every home with a fuel-burning appliance. Detectors should be on every level and within 5 metres of every sleeping area. CO detectors have a 5 to 7-year lifespan — replace them even if the unit appears to be working. Annual furnace maintenance includes both a combustion analysis and a CO leak test in circulating air — the only proactive check available.
🚨 If your CO detector alarms: Leave the home immediately, leaving doors open as you exit. Call 911 from outside. Do not re-enter until emergency services clear the building. Do not silence the alarm and remain inside. CO poisoning causes headaches, nausea, and confusion that can prevent you from recognising the severity of the situation. This is an emergency.
Your Furnace Repair & Maintenance Specialist — London Ontario
Abdullah Ghzail — Lead HVAC Technician & Founder
Abdullah repairs and maintains furnaces across London Ontario and Southwestern Ontario since 2018 — $175 diagnostic applied to repair cost because the homeowner should know what is wrong and what it costs before anyone picks up a tool; $149 annual tune-up because a cleaned flame sensor costs $0 at the October inspection and $150 to $250 in a January emergency call; Priority dispatch for Premium plan members because the January service queue in London Ontario is real and plan members should not wait behind homeowners who skipped maintenance. TSSA certified. BBB A+. 138 five-star reviews.
Furnace Repair & Maintenance Reviews — London Ontario
138 five-star reviews — October tune-up with combustion analysis and MERV recommendation, Premium priority dispatch for January inducer repair, September 14-year-old furnace assessed with early inducer wear identified. Read all ↗
"Signed up for the annual maintenance plan after Hawana installed our Goodman. The October tune-up was thorough — the technician cleaned the flame sensor, tested the heat exchanger with a combustion analyser, confirmed the flue was clear, and showed me the CO reading in the circulating air. He found the filter was more loaded than expected and recommended moving to a MERV 8 on a 3-month schedule. About 90 minutes. $149 for the year. That's the kind of proactive inspection I wanted going into a London Ontario winter."
"Furnace stopped working on a January Tuesday evening — called Hawana at 8pm. As a Premium plan member I was told my call had priority dispatch. Technician arrived within the hour. Diagnosed a failed inducer motor on our 11-year-old Carrier. Part sourced by next morning, installed by noon Wednesday. Diagnostic fee waived as a plan member. No 8pm surcharge. The priority dispatch on the Premium plan is exactly what it claims to be — a real benefit in January when every company in London Ontario is maxed out."
"Called for a furnace tune-up before the heating season — our furnace is 14 years old and I wanted a proper inspection, not just a filter swap. The technician did a full combustion analysis, confirmed the heat exchanger had no cracks, cleaned the flame sensor, checked all gas connections, and tested all the controls. He noted the inducer motor was showing early wear and recommended keeping an eye on it this season. That early warning is exactly what annual maintenance is for. $149 basic plan. Not eager to sell me a new furnace unnecessarily."
Furnace Repair & Maintenance — Southwestern Ontario
Same pricing across the entire service area. No travel surcharge. 24/7 emergency throughout.
Furnace Repair & Maintenance FAQ — London Ontario 2026
Every question London Ontario homeowners ask about furnace repair costs, annual tune-up content, maintenance plan value, carbon monoxide, filter replacement, seasonal timing, and priority dispatch.
Book a Furnace Tune-Up or Repair in London Ontario
Annual tune-up from $149/yr — 12-point inspection, combustion analysis, CO test, flame sensor cleaning. Repair $175 diagnostic applied to cost. Premium plan $249/yr with priority January dispatch. 24/7 zero surcharge. TSSA certified. BBB A+.
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